Solar PV Analysis of Yogyakarta, Indonesia
Yogyakarta, Indonesia is a good location for generating solar energy all year round due to its tropical climate. The amount of sunlight remains fairly consistent throughout the year, making it ideal for solar power generation.
Here's what you can expect in terms of electricity output from each kilowatt (kW) of installed solar panels:
- Summer: 4.94 kilowatt-hours (kWh) per day
- Autumn: 5.57 kWh/day
- Winter: 5.52 kWh/day
- Spring: 5.73 kWh/day
These numbers show that while there are slight variations between seasons, the overall difference is minimal, meaning you can depend on your solar panels to produce a steady amount of power throughout the year.
The best times to generate solar power in Yogyakarta would be during autumn and spring when daily outputs are slightly higher than summer and winter.
For fixed panel installations at this location, tilting your panels at an angle of 8 degrees towards the North will help maximize total yearly production from your solar PV system.
As for potential obstacles to producing solar energy in Yogyakarta, one factor could be the region's wet season which might reduce sunlight exposure and cause dirt or debris accumulation on panels which could affect their efficiency. However, these issues can be mitigated by regular cleaning and maintenance of the panels.
Another possible challenge could be local regulations or building codes that might restrict where or how you install your system - so it's always worth checking with local authorities before beginning installation.
In conclusion, Yogyakarta offers favourable conditions for generating reliable amounts of electricity through photovoltaic systems all year round with minor seasonal variations and manageable challenges.
Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 151 locations across Indonesia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Indonesia by location
Solar output per kW of installed solar PV by season in Yogyakarta
Seasonal solar PV output for Latitude: -7.8035, Longitude: 110.3646 (Yogyakarta, Indonesia), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
Ideally tilt fixed solar panels 8° North in Yogyakarta, Indonesia
To maximize your solar PV system's energy output in Yogyakarta, Indonesia (Lat/Long -7.8035, 110.3646) throughout the year, you should tilt your panels at an angle of 8° North for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Yogyakarta, Indonesia
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Yogyakarta, Indonesia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° South in Summer | 14° North in Autumn | 23° North in Winter | 2° North in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Yogyakarta, Indonesia
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Yogyakarta, Indonesia.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Yogyakarta, Indonesia
Yogyakarta, Indonesia is located in the southern part of Java Island. The topography of this region is diverse, with flat lands towards the south coast and mountainous regions towards the north. The city itself is relatively flat but surrounded by mountains such as Mount Merapi to the north.
The areas most suitable for large-scale solar PV installations would ideally be those with a high amount of sunlight exposure throughout the year and relatively flat terrain to facilitate installation. Given these criteria, potential locations could include:
1. Flatlands around Bantul Regency: Located to the south of Yogyakarta city, this area has extensive flat land which can be utilized for solar farms.
2. Kulon Progo Regency: This regency in western Yogyakarta also has wide-stretched lowland areas that receive good sunlight throughout the year.
3. Gunung Kidul Regency: Although known for its hilly topography, it also possesses some plain areas that could be considered for solar power projects.
However, it's important to note that any decision should take into account other factors like local climate conditions (cloud cover frequency), accessibility (proximity to roads and electrical grid), land use restrictions or protections (national parks or agricultural lands) and local community acceptance toward such projects.
For more precise analysis on suitable sites for large-scale solar PV installations in Yogyakarta region or anywhere else in Indonesia, one might need detailed GIS data along with irradiance data which can provide more accurate information about sun hours per day at specific locations across different seasons.
Indonesia solar PV Stats as a country
Indonesia ranks 71st in the world for cumulative solar PV capacity, with 211 total MW's of solar PV installed. Each year Indonesia is generating 1 Watts from solar PV per capita (Indonesia ranks 88th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Indonesia?
Yes, there are several incentives for businesses wanting to install solar energy in Indonesia. The Indonesian government has implemented a number of policies and programs to encourage the adoption of renewable energy sources such as solar power. These include tax exemptions, subsidies, feed-in tariffs, and other financial incentives. Additionally, the government has established a Renewable Energy Fund which provides grants for research and development projects related to renewable energy technologies.
Do you have more up to date information than this on incentives towards solar PV projects in Indonesia? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 27th of May 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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